/* KF链接分流器样式文件 */

/* 基础按钮样式 */
.kf-link-btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white !important;
    padding: 12px 24px;
    text-decoration: none !important;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
    text-align: center;
    line-height: 1.4;
    box-shadow: 0 2px 8px rgba(118, 75, 162, 0.2);
}

.kf-link-btn:hover {
    background: linear-gradient(135deg, #5a6fd8, #6a4190);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(118, 75, 162, 0.3);
    color: white !important;
    text-decoration: none !important;
}

.kf-link-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(118, 75, 162, 0.2);
}

.kf-link-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

/* 禁用状态 */
.kf-link-btn:disabled,
.kf-link-btn.disabled {
    background: #cccccc !important;
    color: #666666 !important;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 无链接状态 */
.kf-no-link {
    display: inline-block;
    background-color: #f8f9fa;
    color: #6c757d;
    padding: 12px 24px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    font-style: italic;
    font-size: 16px;
}

/* Telegram风格 */
.kf-link-btn.style-telegram {
    background: #0088cc;
    box-shadow: 0 2px 8px rgba(0, 136, 204, 0.2);
}

.kf-link-btn.style-telegram:hover {
    background: #006699;
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

/* WhatsApp风格 */
.kf-link-btn.style-whatsapp {
    background: #25d366;
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.2);
}

.kf-link-btn.style-whatsapp:hover {
    background: #20b858;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

/* 边框风格 */
.kf-link-btn.style-outline {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea !important;
    box-shadow: none;
}

.kf-link-btn.style-outline:hover {
    background: #667eea;
    color: white !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* 大尺寸按钮 */
.kf-link-btn.size-large {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: 10px;
}

/* 小尺寸按钮 */
.kf-link-btn.size-small {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 6px;
}

/* 圆形按钮 */
.kf-link-btn.style-rounded {
    border-radius: 50px;
}

/* 扁平样式 */
.kf-link-btn.style-flat {
    background: #667eea;
    box-shadow: none;
}

.kf-link-btn.style-flat:hover {
    background: #5a6fd8;
    transform: none;
    box-shadow: none;
}

/* 链接列表样式 */
.kf-link-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.kf-link-list li {
    margin: 0;
}

.kf-link-list.style-vertical {
    flex-direction: column;
    align-items: flex-start;
}

.kf-link-list.style-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .kf-link-btn {
        display: block;
        width: 100%;
        text-align: center;
        margin: 10px 0;
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .kf-link-list {
        flex-direction: column;
        align-items: stretch;
    }
    
    .kf-link-list.style-grid {
        grid-template-columns: 1fr;
    }
    
    .kf-link-list .kf-link-btn {
        margin: 5px 0;
    }
}

@media (max-width: 480px) {
    .kf-link-btn {
        padding: 12px 16px;
        font-size: 15px;
    }
    
    .kf-link-btn.size-large {
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .kf-link-btn.size-small {
        padding: 8px 12px;
        font-size: 13px;
    }
}

/* 深色主题支持 */
@media (prefers-color-scheme: dark) {
    .kf-no-link {
        background-color: #2d3748;
        color: #a0aec0;
        border-color: #4a5568;
    }
}

/* 打印样式 */
@media print {
    .kf-link-btn {
        background: white !important;
        color: black !important;
        border: 1px solid black;
        box-shadow: none !important;
        transform: none !important;
    }
}

/* 加载动画 */
.kf-loading {
    position: relative;
    pointer-events: none;
    color: transparent !important;
}

.kf-loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: kf-spin 1s linear infinite;
}

@keyframes kf-spin {
    to {
        transform: rotate(360deg);
    }
}

/* 按钮组样式 */
.kf-button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.kf-button-group .kf-link-btn {
    flex: 1;
    min-width: 120px;
}

@media (max-width: 600px) {
    .kf-button-group {
        flex-direction: column;
    }
    
    .kf-button-group .kf-link-btn {
        width: 100%;
    }
}

/* 工具提示样式 */
.kf-link-btn[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .kf-link-btn {
        border: 2px solid;
    }
    
    .kf-link-btn.style-outline {
        border-width: 3px;
    }
}